Mobile battery case



FIG. 1 is a front view of the mobile battery case;

FIG. 2 is a left-hand-side view of the mobile battery case;

FIG. 3 is a right-hand-side view of the mobile battery case;

FIG. 4 is a rear view of the mobile battery case;

FIG. 5 is a top view of the mobile battery case; and,

FIG. 6 is a bottom view of the mobile battery case. 

The ornamental design for a mobile battery case, as shown and described in the Figures. 